Leftwich, R. H., & Sharp, A. M. (1980). Economics of social issues (4th ed.). Business Publications.
Chicago-čujuhus (17. p.)Leftwich, R. H., juo A. M. Sharp. Economics of Social Issues. 4th ed. USA: Business Publications, 1980.
MLA-čujuhus (9. p.)Leftwich, R. H., juo A. M. Sharp. Economics of Social Issues. 4th ed. Business Publications, 1980.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.